When troubleshooting SCSI problems, which file should you check?

When troubleshooting SCSI (Small Computer System Interface) problems, the best file to check is found in the /proc/scsi/scsi directory. This file provides detailed information about the current status of SCSI devices recognized by the Linux kernel. By checking this file, an administrator can view a list of SCSI devices that are currently connected to the system, along with their status and configurations.

This information is crucial for identifying issues related to device recognition, errors, or malfunctioning components within the SCSI subsystem. The output from this file can help pinpoint whether the devices are properly detected by the operating system and assist in further diagnosing any problems based on the details it provides.

The other options might contain relevant information, but they serve different purposes. For instance, /sys/class/scsi_host/host#/scan is used to manually trigger a scan for new SCSI devices. The /var/log/messages file contains a wide range of system messages but may not focus specifically on SCSI issues. Lastly, /etc/scsi.conf is often not used in modern Linux systems, as it was intended for static configuration of SCSI devices in older systems.

Thus, for direct information on the status and configuration of SCSI devices, referencing the